SPARK PLUG HAVING IMPROVED GROUND ELECTRODE ORIENTATION AND METHOD OF FORMING

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United States of America Patent

APP PUB NO 20160049772A1
SERIAL NO

14875277

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A spark plug (20) for being threaded into a cylinder head (28) includes a shell (24) with threads (26) disposed at a predetermined angled relative to the ground electrode (34). The position of the threads (26) relative to the ground electrode (34) places the ground electrode (34) in a predetermined position in the combustion chamber (22) and relative to components of the engine, thus allowing the ground electrode (34) to provide a robust and reliable ignition. The threads (26) are formed by a thread forming apparatus (102) that includes an orientation tool (38) to position the ground electrode (34) relative to a thread forming apparatus (102), allowing the thread forming apparatus (102) to form the threads (26) at the desired angle (α).

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Patent Owner(s)

Patent OwnerAddress
FEDERAL-MOGUL LLC27300 WEST ELEVEN MILE ROAD SOUTHFIELD MI 48034

International Classification(s)

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  • 2015 Application Filing Year
  • H01T Class
  • 186 Applications Filed
  • 166 Patents Issued To-Date
  • 89.25 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances2015201620172018201920200255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gfell, Patrick M Waterville, US 3 9
Gregg, Don R Weston, US 2 2
Kowalski, Kevin J Perrysburg, US 19 82

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Patent Citation Ranking

  • 1 Citation Count
  • H01T Class
  • 12.36 % this patent is cited more than
  • 9 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges117241101 - 1011 - 2031 - 4051 - 6005101520253035404550556065707580

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